public function testRemoveCookieWithNullRemove() {
$bag = new ResponseHeaderBag();
$bag
->setCookie(new Cookie('foo', 'bar', 0));
$bag
->setCookie(new Cookie('bar', 'foo', 0));
$cookies = $bag
->getCookies(ResponseHeaderBag::COOKIES_ARRAY);
$this
->assertTrue(isset($cookies['']['/']));
$bag
->removeCookie('foo', null);
$cookies = $bag
->getCookies(ResponseHeaderBag::COOKIES_ARRAY);
$this
->assertFalse(isset($cookies['']['/']['foo']));
$bag
->removeCookie('bar', null);
$cookies = $bag
->getCookies(ResponseHeaderBag::COOKIES_ARRAY);
$this
->assertFalse(isset($cookies['']['/']['bar']));
}